seymour



4 Sheets(Sheet 1.

(N6 Modl.)

G". SEYMOUR;

LATHE.

.No. 501,470. Patented July 11,1893.

(No Model.)

LATHE.

' Patented July 11,1893.

(No Model.)

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LATHE Wane mes w/m aazm,

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. O. SEYMOUR. I

LATHE.

No. 501,470. Patented July 11, 1893.,

UNITED STATES PATENT 7 OFFICE.

CHARLES SEYMOUR, OF DEFIANOE, OH IO, ASSIGNOR TO THE DEFIANOE MACHINEWORKS, OF SAME PLACE.

LATHE.

SPECIFICATION forming part of Letters Patent No. 501,470, dated July 11,1893.

Application filed July 29, 1892. Serial No. 441,632. (No model.)

To all whom it may concern:

Be it known that I, CHARLES SEYMOUR, a resident of Defiance, in thecounty of Defiance and State of Ohio, have invented certain new anduseful Improvements in Lathes; and I do hereby declare the following tobe a full, clear, and exact description of the invention such as willenable others skilled in the art to which it appertains to make and usethe same.

My invention relates to improvements in lathes, and more particularly tosuch as are employed for turning irregular forms, such as wooden wagonaxles, bolsters, sand boards, ax handles, shoe lasts, ox yokes, gunstocks, and other irregular forms,the object being to construct themachine in such manner that it shall be of compact arrangement andsubstantial.

A further object is to provide simple and efficient means whereby toautomatically govern the action of the cutter head or heads inconformity with the pattern employed.

A further object is to construct and arrange the machine in such manneras to admit of a space for the downward discharge of chips, &c., andrender easy the disposal of said chips, &c., by means of a suitableexhauster.

A further object is to locate the article to be turned and the cutterheads in such relative positions as to secure immunity of the operatorfrom danger by the cutter heads.

A further object is to construct the bed plates in such manner as tosecure strength and rigidity.

With these objects in View the invention consists in certain novelfeatures of construction and combinations and arrangements of parts ashereinafter set forth and pointed out in the claims.

In the accompanying drawings: Figure 1 is a front elevation of themachine. Fig. 2 is a right hand end elevation. Fig. 3 is aleft hand endelevation. Fig.4 is a plan view. Fig. 5 is a sectional view. Fig. 6 is aview illustrating the sliding portion of the carriage. Fig. 7 is asectional view of a cutter head, shaft and pulley.

A, A, represents the end plates or uprights of the machine, and areconnected by means of bed plates B, G, D, each of which is made or casthollow. The bed plate Bis preferably made U-shaped in cross section andis secured between the arms a, of the end-plates. The bed plate 0 ispreferably made V-shaped in cross section and is secured between thearms I) of the end plates or .uprights. The bed plate D is locatedbetween the bed-plates B and C and is secured to theend plates oruprights as shown in Figs. '2 and 4. In general shape in cross sectionthe bed plate D is smaller at its upper edge than at its bottom, and atits upper edge is made with a flange c which enters a groove or recess 0of a carriage E. The base of the carriage is disposed in a diagonalposition as shown in Fig. 5, and atits lower end is provided withadove-tailed flange c which embraces a similarly shaped flange orprojection c projecting from the bed plate D. Thus it will be seen thatby mounting the carriage E on the bed plate D in this manner, saidcarriage may have a sliding movement imparted to it. Several carriagesmay be employed, and each is provided with a bracket or nut cl(preferably made in halves) which is screwthreaded for the accommodationof a screw E which passes through it,said screw passing through thebracket or nut of each carriage and extending the full length of themachine, being provided at one end with a pulley 1.

Mounted in suitable boxes e carried by the end plates or uprights A, isa shaft f, on which is secured, between the end plates or uprights A, along drum F. The ends of the shaftf are extended beyond their bearings,and on one end fast and loose pulleys 2,3, are mounted, for thereception of a suitable strap or belt from any convenient source ofpower. On the other end of the shaft f, two pulleys 4, 5, are secured. Astrap 6 passes over the pulleys Land 1, whereby to transmit motion tothe screwE. A strap 7 passes over the pulley 5 and also over a pulley 8mounted on a shaft 9 projecting from one of the uprights or end platesA, a pinion 10 being also mounted on said shaft and adapted to rotatewith the pulley 1 for a purpose hereinafter explained.

At one end of the bed plate B a head stock G is secured, and at or nearthe other end of said bed plate B, a'tail stock G is secured, betweenwhich stocks the pattern G is held.

Secured at one end of the bed plate O is a head-stock H and in proximityto the other end of the bed plate 0 a tail stock I1 is secured andbetween the stocks H, II, the material H is held. The head stocks G, andH have rotating spindlosI driven in correspondence of time by means of atrain of gears 11, 1?, The train of gears is impelled by the pinion 10on the shaft 9 above alluded to.

In the upper part of each carriageE ashaft J is located on which anoscillatory bracket K is hung. In the lower end of each bracket K ashaft h is mounted and carries acutter head L,and a pulley 14. ThecutterheadL (shown in section in Fig. 7) consists of four U shapedknives 2', held to a hub c" by means of suitable bolts. From thisconstruction and arrangement of parts it will be seen that the cutterheads will be disposed between the bed plates 0, D, where they arenotlikely to confiict with or injure the operator.

Two pulleys 15, 16 are mounted loosely on each shaft J and are adaptedto rotate together.

shafts h by means of suitable belts.

tween its ends with an elongated slot j in which a pin j projecting fromthe end of the tained properly in contact with said pattern by means ofa spring 0 attached at one end to the arm K of the oscillatory bracket Kand at the other end to the carriage E.

By constructing the machine as above described the material to beturned, is operated upon by the cutters at such an angle as to dischargethe chips downward through the space between the bed plates 0, and D,thus falling upon the floor in a limited area from which they may beeasily gathered by a fan exhauster or other means. In turning sticks ofconsiderable length, as for instance, an 0X yoke, the cutter of onecarriage maybe started into operation at the middle of the stick, andthe cutter of the other carriage at the end of the stick; both feedingin the same direction horizontally, either toward the right or towardthe left, as desired. When shorter pieces are turned, one carriage alonemay be employed.

Various slight changes might be made in the details of construction ofmy invention without departing from the spirit thereof or limiting itsscope, hence I do not Wish to limit myself to the precise details ofconstruction herein set forth, but,

Having fully described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a lathe, the combination with end Motion is imparted to thepulleys 15 by means of asuit-able strap or belt from the j long drum Fand motion is imparted from the pulleys 16 to the pulleys 14 on thecutter To the laterally and downwardly projecting arm K- of each bracketK, an arm or lever M is pivotally connected and provided at a point be-%plates, and aseries of bed-plates, of a movable carriage supported bythe central bed-plate, cutting and operating mechanism mounted on saidcarriage, and devices supported solely on each of the side bed platesrespectively for supporting the pattern and work, substantially as setforth.

2. The combination with two end plates, of a hollow bed plate securedbetween said end plates, a sliding carriage carried by said bed plate, acutter carried by the carriage, and located and operating between two ofthe bed plates hollow bed plates at each side of and removed from thefirst-mentioned bed plate and head and tail stocks supported solely oneach of said side bed-plates respectively, substantially as set forth.

3. In a lathe, the combination with end plates, of two bed plates,arranged a distance apart,devices carried by one of said-bed plates, anda cutter supported by said devices between the bed plates, substantiallyas set forth.

4. In a lathe, the combination with end plates, of two bed platessecured thereto, a carriage on one of said bed plates, a bracketpivotally supported by said carriage and projecting downwardly betweensaid bed plates; a cutter at the lower end of the bracket and devicescarried by the other bed'plat e for supporting the work, substantiallyas set forth.

5. In a lathe, the combination with end plates, of two bed platessecured thereto, a carriage carried by one of the bed plates, a bracketpivotally connected to the carriage, a cutter carried by one arm of thebracket and located between the bed plates, a bracket located inposition to swing the bracket and devices carried by the other :bedplate for supporting the work, substantially as set forth.

6. Ina lathe, the combination with a bed plate a carriage mountedthereon and a cutter carried by-said carriage, of a bed plate located toone side of the cutter, head and tail stocks carried by thelast-mentioned bed plate, said bed plates being so arranged relativelyto the cutter, that the latter will operate between them and dischargethe'chips, &c., downwardly between said bed plates without coming intocontact with them, substantially as set forth.

7. In a lathe, the combinationwith two bed plates, of a carriage carriedby one of said bed plates, stocks carried solely by the other bed platefor supporting the material to be acted upon, a bracket carried by saidcarriage, and a cutter carried by said bracket and disposed between thebed plates in such manner as not to be in the way of the operator,substantially as set forth.

8. In a lathe, the combination with three bed plates, of a carriagecarried by the central bed plate,means for moving said carriage, headand tail stocks carried by the two side bed plates, one pair of saidstocks being for the reception of the material to be acted upon and theother pair for the pattern, an oscillatory bracket carried by thecarriage IIO ter, in proximity to the material to be actedupon, and apivoted arm or lever carried by said bracket and adapted to bear on thepattern, substantially as set forth.

9. In a lathe, the combination with a series I of hollow bed platesseparated from each other, of a carriage carried by the central bedplate, means for moving said carriage, head and tail stocks carried bythe two side bed plates, one pair of said stocks being for the receptionof the material to be acted upon and the other pair for the pattern, anoscillatory bracket carried by the carriage one end of the bracketprojecting between two of the bed plates and supporting a cutter, inproximity to the material to be acted upon, a pivoted arm or levercarried by said bracket and a shoe carried by said arm or lever andadapted to bear on the pattern, substantially as set forth.

10. In a lathe, the combination with three bed plates, of a carriagecarried by the central bed plate, means for moving said carriage, headand tail stocks carried by the two side plates, one pair of said stocksbeing for the reception of the material to be acted upon and the otherpair for the pattern, an oscillatory bracket carried by the carriage,one end of the bracket projecting between two of the bed plates andsupporting a cutter in proximity to the material to be acted upon, anarm or lever pivotally connected to said bracket and having a limitedvibratory movement, a shoe carried by said arm or lever and adapted tobear on thepattern and a spring attached at one end to the carriage andat the other end to the oscillatory bracket, substantially as described.

-In testimony whereof I have signed this specification in the presenceof two subscribing witnesses. 4

CHARLES SEYMOUR.

Witnesses GEO. W. DEATRIOK, MAY E. FISHER.

